WO2011118015A1 - Procédé de fabrication d'ensemble batterie - Google Patents

Procédé de fabrication d'ensemble batterie Download PDF

Info

Publication number
WO2011118015A1
WO2011118015A1 PCT/JP2010/055309 JP2010055309W WO2011118015A1 WO 2011118015 A1 WO2011118015 A1 WO 2011118015A1 JP 2010055309 W JP2010055309 W JP 2010055309W WO 2011118015 A1 WO2011118015 A1 WO 2011118015A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembled battery
discharge
manufacturing
voltage
battery
Prior art date
Application number
PCT/JP2010/055309
Other languages
English (en)
Japanese (ja)
Inventor
貞雄 藤崎
大下　浩司
Original Assignee
トヨタ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to CN201080013767.8A priority Critical patent/CN102365782B/zh
Priority to US13/258,001 priority patent/US8673026B2/en
Priority to JP2010539655A priority patent/JP5299434B2/ja
Priority to PCT/JP2010/055309 priority patent/WO2011118015A1/fr
Publication of WO2011118015A1 publication Critical patent/WO2011118015A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making

Definitions

  • the present invention relates to a method for manufacturing an assembled battery having a plurality of unit cells.
  • secondary batteries such as lithium ion batteries have attracted attention as power sources for vehicles such as hybrid vehicles and electric vehicles as well as electronic devices such as portable PCs and mobile phones.
  • a secondary battery such as this lithium ion battery, a desired output voltage is obtained by connecting a plurality of single cells (single cells) in series to form an assembled battery.
  • each single cell constituting the assembled battery must be normal. Therefore, prior to assembling the assembled battery, each cell is inspected. Inspected cells are adjusted to a value close to the minimum charge percentage (SOC: State of Charge) by discharging in consideration of safety in storage and shipping.
  • SOC State of Charge
  • FIG. 11 shows a manufacturing process of a conventional assembled battery.
  • a single cell is manufactured (S11).
  • each unit cell is adjusted to a predetermined SOC, and the unit cell is inspected (S12).
  • the inspected unit cell is discharged and adjusted so that the SOC becomes the minimum use% (30% in this embodiment) (S13).
  • the discharged single cells are stacked to form a stack (S14).
  • the unit cells constituting the stack body are electrically connected in series to form an assembled battery (S16).
  • each single cell constituting the stack body after forming the stack body is known.
  • a technique for inspecting each single cell constituting the stack body after forming the stack body is known. For example, in the method of manufacturing an assembled battery disclosed in Patent Document 1, first, in the state of a single cell, each cell is inspected by adjusting the SOC to less than the minimum usage%. Thereafter, the inspected unit cells are assembled, the assembled unit cells are charged until the SOC reaches the intermediate use value, and each unit cell is inspected again in that state. Then, inspect the battery as an assembled battery.
  • the conventional method for manufacturing an assembled battery has the following problems.
  • the cell voltage varies depending on the individual cell voltage (internal resistance difference), the discharge equipment, the environment such as temperature and humidity, and the elapsed time since discharge. Variation occurs.
  • the voltage variation of the unit cell is one of the factors that deteriorate the performance of the assembled battery.
  • Patent Document 1 it can be expected that variations in the voltage after discharge can be reduced by charging all the cells under the same conditions (equipment, environment, time, etc.) after the cells are assembled.
  • a power source is required for filling, and the device itself is expensive.
  • an object of the present invention is to provide a method of manufacturing an assembled battery in which the voltage variation of each unit cell constituting the assembled battery is safely suppressed.
  • An assembled battery manufacturing method for solving this problem is a method of manufacturing an assembled battery having a plurality of unit cells, wherein the unit cell is adjusted so that its charging rate becomes the first charging rate. 1 adjusting step, assembling a plurality of single cells whose charging rates are adjusted to the first charging rate, and assembling steps in which each single cell forms an electrically non-connected stack body, and at least two constituting the stack body And a second adjustment step of collectively discharging the single cells so that the charging rate becomes a second charging rate lower than the first charging rate.
  • the unit cell after adjustment is assembled to form a stack body. Then, in the state of the stack body, the plurality of single cells constituting the stack body are adjusted to the second charging rate by collective discharge.
  • the discharge conditions (equipment, time, environment, etc.) of the single cells constituting the stack body are the same. Therefore, the voltage variation of each single cell constituting the stack body is reduced.
  • the power source required for charging is not required for the equipment after the stack body is configured.
  • each cell is arranged with the 2nd charge rate lower than a 1st charge rate, and it is safe at the time of storage or shipment.
  • all the single cells constituting the stack body may be collectively discharged so that the second charging rate is obtained.
  • the second charging rate in the above manufacturing method may be a minimum use value of the unit cell. That is, it is most desirable in terms of safety that the second charging rate, which is the charging rate after collective discharge, is a minimum use value.
  • the minimum use value (use minimum%) does not have to be exact, and may be a value that approximates the use minimum% even if it is larger than the use minimum%. For example, in consideration of the voltage drop due to self-discharge, the value may be slightly larger than the minimum usage%.
  • the amount of voltage change due to discharge in the second adjustment step in the above manufacturing method is preferably larger than the amount of voltage variation before discharge of each unit cell.
  • the voltage change amount due to the collective discharge is larger than the voltage variation amount before the discharge, it is possible to effectively reduce the voltage variation.
  • the voltage change amount due to the discharge in the second adjustment step is larger than the value obtained by adding the voltage change amount from the stack body formation time in the assembling step.
  • the amount of voltage change due to the discharge in the second adjustment step is larger than the value obtained by adding the amount of voltage variation after the collective discharge of each unit cell.
  • a method for manufacturing an assembled battery is realized in which voltage variations among the individual cells constituting the assembled battery are safely suppressed.
  • the present invention is applied to a method of manufacturing a lithium ion assembled battery mounted on a hybrid vehicle or the like.
  • the assembled battery 100 of this embodiment includes a plurality of single cells 1 and two end plates (first end plate 12 and second end plate 13) that are metal plates.
  • the first end plate 12 and the second end plate 13 are arranged on both ends of the assembled battery 100 in the stacking direction of the plurality of single cells 1 (the direction of the arrow D1 in FIG. 1), and the stacking direction of the single cells 1
  • the dimensional change is suppressed.
  • the first end plate 12 and the second end plate 13 use a plurality of rod bolts (not shown) through which the end plates 12 and 13 themselves are inserted in the stacking direction D1, and the unit cell 1 stacked in the stacking direction D1 is predetermined.
  • the dimensional change is suppressed by clamping with pressure.
  • a battery group in which the single cells 1 are stacked from the first end plate 12 to the second end plate 13 is arranged in two rows in the stacking direction D1. Further, the adjacent unit cells 1 and 1 are connected to a copper bus bar (a groove-type bus bar connecting the adjacent unit cells 1 and 1 in the stacking direction D1 of the unit cells 1 is “bus bar 50”, and the row direction D2 of the battery group) Are connected in series with each other by “bus bar 51”.
  • a copper bus bar a groove-type bus bar connecting the adjacent unit cells 1 and 1 in the stacking direction D1 of the unit cells 1 is “bus bar 50”, and the row direction D2 of the battery group
  • the unit cell 1 has a belt-like positive electrode plate 2, a negative electrode plate 3, and a separator 4, and a power generation element 10 formed by superimposing them and a battery that houses the power generation element 10 inside.
  • the lithium ion secondary battery includes a case 8.
  • the positive electrode plate 2 carries a positive electrode active material layer (not shown) on both surfaces of a strip-shaped aluminum foil.
  • the positive electrode active material layer includes, for example, lithium nickel oxide (LiNiO 2 ) as a positive electrode active material, acetylene black as a conductive agent, and polytetrafluoroethylene (PTFE) and carboxymethyl cellulose (CMC) as a binder.
  • the negative electrode plate 3 carries a negative electrode active material layer (not shown) on both sides of a strip-shaped copper foil. This negative electrode active material layer contains, for example, graphite and a binder.
  • EC ethylene carbonate
  • EMC ethyl methyl carbonate
  • LiPF 6 LiPF 6
  • the materials used for the positive electrode plate 2, the positive electrode active material layer, the negative electrode plate 3, the negative electrode active material layer, and the electrolytic solution are merely examples, and those generally used for lithium ion batteries can be selected as appropriate. That's fine.
  • the battery case 8 of the unit cell 1 has a battery case body 81 and a sealing lid 88 both made of aluminum.
  • An insulating member (not shown) such as an insulating film is interposed between the battery case 8 and the power generation element 10 to insulate each other.
  • the sealing lid 88 closes the opening of the battery case body 81 and is welded to the battery case body 81.
  • the positive electrode terminal portion 21 ⁇ / b> A and the negative electrode terminal portion 31 ⁇ / b> A located at the distal end pass through the sealing lid 88, respectively. In FIG. 2, it protrudes from the sealing lid 88.
  • An insulating member 89 made of an insulating resin is interposed between the positive terminal portion 21A and the negative terminal portion 31A and the sealing lid 88 to insulate each other.
  • a safety valve 87 is also sealed on the sealing lid 88.
  • FIG. 3 shows the relationship between the charging rate (SOC) and voltage of the unit cell 1 which is a lithium ion secondary battery.
  • the unit cell 1 maintains a substantially constant voltage value (about 3.6 V in this embodiment) with little change in voltage value when the SOC is in the range of 30% to 60%.
  • the SOC is lower than 30% (overdischarge state)
  • the voltage value drops rapidly and the required battery output cannot be obtained.
  • an overdischarge state with an SOC of 30% or less is left, cobalt on the positive electrode side and copper on the negative electrode side begin to elute, and the function as a secondary battery is significantly degraded.
  • the SOC is higher than 60% (overcharged state)
  • the voltage value increases rapidly and the battery output becomes unstable.
  • the single cell 1 has a minimum SOC value (30% in the present embodiment) and a maximum use value (60% in the present embodiment), and is controlled to be within the range when used.
  • the cell 1 is manufactured (S01). Thereafter, the unit cell 1 is inspected (S02). In the inspection of the unit cell 1, for example, the SOC is adjusted to an intermediate value (45% in this embodiment) of the usage range.
  • a known technique may be used for the manufacture in S01 and the inspection in S02.
  • FIG. 5 shows the stack 90 after the unit cell 1 is assembled in S04.
  • the individual cells 1 are not connected by the bus bars 50 and 51 (see FIG. 1), and the individual cells 1 are not electrically connected.
  • the voltage value of each unit cell 1 assembled as the stack body 90 When the voltage of each unit cell 1 assembled as the stack body 90 is measured, the voltage value varies. There are several possible reasons why the voltage value varies. Here, the reason why the voltage value varies will be described with reference to the graph of FIG. FIG. 6 shows a voltage transition after the cell 1 is discharged.
  • the voltage value of the single cell 1 decreases when the discharge is performed by the discharge device.
  • resistance such as wiring resistance of the discharge device disappears and the voltage value increases. And it is stabilized at a predetermined voltage value. After that, the voltage value gradually decreases over time due to self-discharge.
  • the reason for the variation in the voltage after the discharge of the unit cell 1 is, for example, the elapsed time from the end of the discharge.
  • the voltage drop is different.
  • the voltage value varies slightly due to the difference in the elapsed time from the end of the discharge (measurement of individual A in FIG. 6).
  • Time a1 and measurement time a2) In addition, for example, differences in discharge facilities (differences in wiring resistance, etc.) and differences in environments (differences in temperature, humidity, etc.) also cause voltage variations.
  • the unit cell 1 has individual differences in internal resistance.
  • the voltage variation of each unit cell 1 constituting the stack body 90 as described above may cause a decrease in performance or a decrease in life as the assembled battery 100.
  • the assembled battery 100 is controlled so that the SOC of each unit cell 1 is within the use range.
  • FIG. 7 shows a control range of the assembled battery (set A) having a small voltage variation and the assembled battery (set B) having a large voltage variation.
  • the plot in FIG. 7 shows the range of voltage variation of the single cells constituting the assembled battery.
  • the position of the set Amax is the maximum and the position of the set Amin is the minimum.
  • the position of the battery set Bmax is the maximum
  • the position of the battery set Bmin is the minimum.
  • the assembled battery B has a smaller degree of freedom than the assembled battery A (DB ⁇ DA) as shown in FIG. Therefore, it is necessary to frequently charge or discharge in order to keep the SOC within the use range, so that the control becomes complicated and the progress of deterioration becomes faster.
  • the individual cells 1 constituting the stack body 90 are adjusted so that the SOC is changed from 40% to 30% by discharge (S05). ). That is, all the cells 1 are adjusted to the same SOC by discharging in the same equipment, the same environment, and the same time. Thereby, the voltage of each single battery 1 which comprises the stack body 90 is arrange
  • the discharge device 60 of the present embodiment includes a work table 61 on which a work 90 (stack body 90) is placed, and a rib 62 that protrudes from the upper surface of the work table 61 (the face on which the work 90 is placed).
  • a pressing member 63 that presses the work 90 placed on the work table 61 against the rib 62 side to fix the work 90 and a plurality of contact portions 65 are arranged at equal intervals, and the vertical direction in FIG.
  • Contact table 64A, 64B provided movably in the left-right direction and the depth direction is provided.
  • the contactor tables 64A and 64B are arranged on the left side of the pressing direction of the pressing member 63 (left and right direction in FIG. 8, hereinafter, the pressing member 63 side is referred to as “left side” and the rib 62 side is referred to as “right side”).
  • a contact table 64A is arranged on the right side, and a contact table 64B is arranged on the right side.
  • the contactor tables 64A and 64B have a contact part 65 protruding from the lower surface, and the contact part 65 is arranged at a position facing the terminal part 91 (the positive terminal part 21A or the negative terminal part 31A) of the work 90. Yes.
  • the contact part 65a of the left end of the contactor table 64A is positioned so that the position of the terminal part 91a of the cell 1 of the left end of the workpiece
  • work 90 may match the position of the left-right direction and a depth direction.
  • the contact portion 65b at the right end of the contact table 64B is positioned so that the positions in the left and right direction and the depth direction coincide with the terminal portion 91b of the unit cell 1 at the right end of the work 90.
  • each contact portion 65 accommodates a contact 67 in a cylindrical guide portion 66.
  • the guide portion 66 is open at the end facing the workpiece 90, and the opening diameter is designed to be a size that can accommodate the terminal portion 91 of the workpiece 90.
  • the terminal portion 91 of the work 90 is guided by the guide portion 66 and can be smoothly connected to the contact 67 of the discharge device.
  • the assembled battery 100 is formed by electrically connecting the single cells 1 in series by the bus bars 50 and 51 (S06).
  • the series connection of the cells 1 in S06 may be immediately after the collective discharge in S05, may be immediately before shipment, or may be immediately before in-vehicle.
  • the single battery 1 is discharged alone (discharge in S03; hereinafter referred to as “discharge before assembly”) and then discharged even after each single battery 1 is assembled. (Discharge in S05, hereinafter referred to as “collective discharge”).
  • the SOC adjusted by this collective discharge shall be the minimum usage% within the usage range. Note that the minimum usage% does not need to be strict, and even a value larger than the minimum usage% may be a value that approximates the minimum usage%. For example, it may be adjusted to a value slightly larger than the minimum usage% in consideration of the voltage being lowered by natural discharge or the like.
  • the target SOC (or voltage value) after discharge before assembly is determined based on the target SOC (or voltage value) after collective discharge.
  • the voltage value (discharge amount due to collective discharge) fluctuated by collective discharge is determined by the voltage variation amount X after assembly discharge, the voltage variation amount Y ( ⁇ X) after collective discharge, and the assembly. It is set to be larger than the total value (X + Y + Z) of the voltage value Z that fluctuates by self-discharge with the elapsed time from pre-attachment discharge to collective discharge.
  • the voltage of SOC 30% which is the minimum usage%, is 3.500 V
  • the voltage variation X after discharge before assembly is ⁇ 0.025 V
  • the voltage variation after collective discharge It is assumed that Y is 0.005V
  • the voltage value Z that varies due to self-discharge accompanying the elapsed time from discharge before assembly to collective discharge is 0.010V.
  • the total value (X + Y + Z) is 0.070V. Therefore, what is necessary is just to set the voltage after discharge before assembly to be 3.570V or more.
  • the target value after discharge before assembly is 3.600 V (40% in terms of SOC).
  • FIG. 10 exemplifies the transition of the variation in the voltage of the unit cell 1 when the pre-assembly discharge and the collective discharge are performed.
  • A in FIG. 10 shows the voltage variation immediately after the unit cell 1 is assembled as the stack body 90. At this stage, the SOC of each unit cell 1 was 40%, and the voltage variation was ⁇ 0.025V. After assembling, the cells were left for 20 days, and each unit cell 1 was self-discharged.
  • (B) in FIG. 10 shows the voltage variation of each unit cell 1 after 20 days and immediately before the collective discharge. By this self-discharge, the voltage of each unit cell 1 decreased by about 0.010V. Thereafter, collective discharge was performed until the SOC reached 30%.
  • C in FIG. 10 shows the voltage variation of the unit cell 1 immediately after the collective discharge. Due to this collective discharge, the voltage variation of the single cell 1 was reduced and reduced to a voltage variation of 0.005V.
  • the single battery 1 is once adjusted to 40% SOC (an example of the first charging rate), and then the single battery 1 with 40% SOC is assembled and stacked.
  • a body 90 is formed.
  • Each cell 1 at this stage has a large voltage variation.
  • the plurality of single cells 1 constituting the stack body 90 are adjusted to SOC 30% (an example of the second charge rate) by collective discharge.
  • the discharge conditions (equipment, time, environment, etc.) of each single cell 1 become the same. Therefore, the voltage variation of each unit cell 1 constituting the stack body 90 is reduced.
  • the voltages of the unit cells 1 are made uniform by discharging, a power source necessary for charging is not necessary. Further, the single cells 1 after the collective discharge are arranged with the SOC of the minimum use%, and are safe at the time of storage and shipment.
  • the present invention is applied to a lithium ion battery, but the type of battery is not limited to this. That is, the single battery in the present invention may be a secondary battery that can be charged and discharged, and can be applied to a nickel metal hydride battery, a nickel cadmium battery, and the like.
  • the battery pack is not limited to an in-vehicle assembled battery, and may be an assembled battery for home appliances, for example.
  • the adjustment of the SOC of the single cell 1 before assembly of S03 is performed by discharging.
  • the SOC of the single cell 1 can be adjusted to a predetermined value, and charging may be performed as appropriate. .
  • the SOC (first charge rate) after discharge before assembly is 40% and the SOC (second charge rate) after collective discharge is 30%.
  • the SOC value is limited to these values. Instead, it can be set as appropriate depending on the configuration of the unit cell 1. In view of safety, it is desirable that the first charging rate be equal to or lower than the intermediate value in the range of the SOC used.
  • all the unit cells 1 constituting the stack body 90 are discharged together, but may be divided into a plurality of groups. That is, by discharging at least two unit cells 1 at once, the voltage values of the unit cells 1 are made uniform. Of course, it is desirable to discharge all the single cells 1 at a time in order to equalize the voltages of the single cells 1 in the assembled battery 100.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention a trait à un procédé de fabrication d'ensemble batterie permettant de fabriquer, dans un premier temps, des éléments de batterie uniques (1) (S01). Par la suite, après que chaque élément de batterie unique (1) ait été contrôlé (S02), chaque élément de batterie unique (1) est ajusté sur un état de charge de 40 % (SOC) (S03). Les éléments de batterie uniques (1) sont ensuite assemblés de manière à former un corps superposé (90) (S04). Dans l'état de corps superposé (90), la pluralité d'éléments de batterie uniques (1) comprenant le corps superposé (90) est ajustée sur un état de charge de 30 % au moyen d'une décharge discontinue (S05). Dans la décharge discontinue, les conditions de décharge (réglage, temps, environnement, etc.) de chaque élément de batterie unique (1) sont identiques de manière à effectuer une décharge discontinue pour la pluralité d'éléments de batterie uniques (1) dans l'état de corps superposé (90).
PCT/JP2010/055309 2010-03-26 2010-03-26 Procédé de fabrication d'ensemble batterie WO2011118015A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201080013767.8A CN102365782B (zh) 2010-03-26 2010-03-26 电池组的制造方法
US13/258,001 US8673026B2 (en) 2010-03-26 2010-03-26 Assembled battery manufacturing method
JP2010539655A JP5299434B2 (ja) 2010-03-26 2010-03-26 組電池の製造方法
PCT/JP2010/055309 WO2011118015A1 (fr) 2010-03-26 2010-03-26 Procédé de fabrication d'ensemble batterie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/055309 WO2011118015A1 (fr) 2010-03-26 2010-03-26 Procédé de fabrication d'ensemble batterie

Publications (1)

Publication Number Publication Date
WO2011118015A1 true WO2011118015A1 (fr) 2011-09-29

Family

ID=44672606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/055309 WO2011118015A1 (fr) 2010-03-26 2010-03-26 Procédé de fabrication d'ensemble batterie

Country Status (4)

Country Link
US (1) US8673026B2 (fr)
JP (1) JP5299434B2 (fr)
CN (1) CN102365782B (fr)
WO (1) WO2011118015A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2016175148A1 (ja) * 2015-04-28 2018-02-15 株式会社カネカ 梱包物

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6478121B2 (ja) * 2016-09-07 2019-03-06 トヨタ自動車株式会社 二次電池の回復処理方法および再利用処理方法
US11404887B2 (en) * 2020-02-14 2022-08-02 Techtronic Cordless Gp Battery charging and discharging using a battery bank during battery manufacture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006324163A (ja) * 2005-05-20 2006-11-30 Toyota Motor Corp 組電池の組付け方法
JP2008293703A (ja) * 2007-05-22 2008-12-04 Panasonic Ev Energy Co Ltd 組電池の製造方法、及び組電池
JP2009043736A (ja) * 2008-10-22 2009-02-26 Panasonic Corp 構成電池

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672736B1 (fr) * 1991-02-08 1993-04-16 Accumulateurs Fixes Procede d'optimisation de la charge d'une batterie d'accumulateurs, et dispositif pour la mise en óoeuvre de ce procede.
JP3615507B2 (ja) * 2001-09-28 2005-02-02 三洋電機株式会社 組電池の充電率調整回路
JP3976268B2 (ja) * 2003-11-28 2007-09-12 インターナショナル・ビジネス・マシーンズ・コーポレーション 電池パック、電気機器、コンピュータ装置、電池の制御方法、電力供給方法、およびプログラム
JP2005278241A (ja) * 2004-03-23 2005-10-06 Nissan Motor Co Ltd 組電池の容量調整装置および容量調整方法
WO2007129839A1 (fr) * 2006-05-04 2007-11-15 Lg Chem, Ltd. Batterie secondaire au lithium et procédé de production de celle-ci
JP2009257775A (ja) * 2008-04-11 2009-11-05 Kawasaki Heavy Ind Ltd 二次電池の充電率推定方法及び装置
JP2010009840A (ja) * 2008-06-25 2010-01-14 Panasonic Corp 組電池およびそれを備えた電池システム
DE102008034461A1 (de) * 2008-07-24 2010-01-28 Ford Global Technologies, LLC, Dearborn Verfahren und Vorrichtung zur Ermittlung des Betriebszustandes einer Fahrzeugbatterie
KR101187766B1 (ko) * 2008-08-08 2012-10-05 주식회사 엘지화학 배터리 셀의 전압 변화 거동을 이용한 셀 밸런싱 장치 및 방법
CN101526587B (zh) * 2009-03-20 2011-05-04 惠州市亿能电子有限公司 串联电池组荷电状态的测量方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006324163A (ja) * 2005-05-20 2006-11-30 Toyota Motor Corp 組電池の組付け方法
JP2008293703A (ja) * 2007-05-22 2008-12-04 Panasonic Ev Energy Co Ltd 組電池の製造方法、及び組電池
JP2009043736A (ja) * 2008-10-22 2009-02-26 Panasonic Corp 構成電池

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2016175148A1 (ja) * 2015-04-28 2018-02-15 株式会社カネカ 梱包物

Also Published As

Publication number Publication date
JP5299434B2 (ja) 2013-09-25
US8673026B2 (en) 2014-03-18
US20130000109A1 (en) 2013-01-03
JPWO2011118015A1 (ja) 2013-07-04
CN102365782A (zh) 2012-02-29
CN102365782B (zh) 2014-07-09

Similar Documents

Publication Publication Date Title
KR101873659B1 (ko) 비수계 이차 전지의 제조 방법
KR102089264B1 (ko) 이차전지의 충방전 장치
KR101903913B1 (ko) 비수계 이차 전지
US10424816B2 (en) Lithium-ion secondary battery and manufacturing method thereof
CN104303332A (zh) 具有阶梯状结构的电池单体
KR101617423B1 (ko) 계단 구조의 하이브리드 전극조립체
KR101626190B1 (ko) 이차전지의 활성화 방법
KR20140014839A (ko) 이차전지
JP2011108507A (ja) 二次電池
JP2015118867A (ja) 全固体電池の製造方法
US20240113529A1 (en) Method of battery cell activation
CN114982035A (zh) 电池组、电池包、电学装置以及电池组的制造方法及制造设备
US20150263334A1 (en) Non-aqueous electrolyte secondary battery
US20120007564A1 (en) Nonaqueous electrolyte secondary battery and method for charging the same
AU2012370347A1 (en) Lithium-ion battery
JP5299434B2 (ja) 組電池の製造方法
KR101431726B1 (ko) 안전성이 향상된 전극조립체 및 이를 이용한 이차전지
KR20150023113A (ko) 가스이동파이프를 포함하는 배터리 팩
JP2012209026A (ja) 組電池の製造方法
JP5776948B2 (ja) リチウム二次電池およびその製造方法
KR101717154B1 (ko) 경화성 물질이 부가된 전지셀 제조 방법 및 제조 장치
KR102233106B1 (ko) 밀폐형 전지 및 조전지
WO2023063009A1 (fr) Batterie secondaire
CN116830344A (zh) 蓄电元件以及蓄电元件的使用方法
JP2005347195A (ja) 非水電解質二次電池

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080013767.8

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2010539655

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 13258001

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10848408

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10848408

Country of ref document: EP

Kind code of ref document: A1